<template>
	<view :class="[styleType === 'text'?'segmented-control--text' : 'segmented-control--button' ]"
		:style="{ borderColor: styleType === 'text' ? '' : activeColor }" class="segmented-control">
		<view v-for="(item, index) in values" :class="[ styleType === 'text' ? '': 'segmented-control__item--button',
		index === currentIndex&&styleType === 'button' ? 'segmented-control__item--button--active': '',
		index === 0&&styleType === 'button' ? 'segmented-control__item--button--first': '',
			index === values.length - 1&&styleType === 'button' ? 'segmented-control__item--button--last': '' ]" :key="index"
			:style="{ backgroundColor: index === currentIndex && styleType === 'button' ? activeColor : '',borderColor: index === currentIndex&&styleType === 'text'||styleType === 'button'?activeColor:'transparent' }"
			class="segmented-control__item" @click="_onClick(index)">
			<view>
				<text 
				:style="{color:index === currentIndex ? styleType === 'text' ? activeColor : '#2979FF' : styleType === 'text' ? '#888': activeColor}" 
				class="segmented-control__text" 
				:class="styleType === 'text' && index === currentIndex ? 'segmented-control__item--text': ''">
				{{ item }}</text>
			</view>

		</view>
	</view>
</template>

<script>
	export default {
			emits: ['clickItem'],
			props: {
				current: {
					type: Number,
					default: 0
				},
				values: {
					type: Array,
					default () {
						return []
					}
				},
				activeColor: {
					type: String,
					default: '#2979FF'
				},
				styleType: {
					type: String,
					default: 'button'
				}
			},
			data() {
				return {
					currentIndex: 0
				}
			},
			watch: {
				current(val) {
					if (val !== this.currentIndex) {
						this.currentIndex = val
					}
				}
			},
			created() {
				this.currentIndex = this.current
			},
			methods: {
				_onClick(index) {
					if (this.currentIndex !== index) {
						this.currentIndex = index
						this.$emit('clickItem', {
							currentIndex: index
						})
					}
				}
			}
		}
	</script>
	
	<style lang="scss" scoped>
		.segmented-control {
			/* #ifndef APP-NVUE */
			padding: 20rpx;
			box-sizing: border-box;
			/* #endif */
			flex-direction: row;
			overflow: hidden;
			/* #ifdef H5 */
			cursor: pointer;
			/* #endif */
		}
	
		.segmented-control__item {
			/* #ifndef APP-NVUE */
			display: inline-block;
			margin: 10rpx;
			box-sizing: border-box;
			/* #endif */
			position: relative;
			flex: 1;
			justify-content: center;
			align-items: center;
		}
	
		.segmented-control__item--button {
			border-style: solid;
			border-top-width: 1px;
			border-bottom-width: 1px;
			border-right-width: 1px;
			border-left-width: 0;
		}
	
		.segmented-control__item--button--first {
			border-left-width: 1px;
			border-top-left-radius: 5px;
			border-bottom-left-radius: 5px;
		}
	
		.segmented-control__item--button--last {
			border-top-right-radius: 5px;
			border-bottom-right-radius: 5px;
		}
	
		.segmented-control__item--text {
			font-size: 38rpx !important;
			font-weight: bold;
			background-image: url(../../static/image/current_card.png);
			background-repeat: no-repeat;
			background-position: left bottom;
		}
	
		.segmented-control__text {
			font-size: 28rpx;
			line-height: 40rpx;
			text-align: center;
		}
	</style>
	